1. He kūpono nā ʻoki ʻoki no nā paipu a i ʻole nā mea hana me ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe kiʻekiʻe. E like me nā mea kanu wela, nā mea kanu nuklea, ka wela kiʻekiʻe a me nā pipeline kiʻekiʻe o nā ʻōnaehana petrochemical.
2. Hoʻohana ʻia nā kiwi honua i nā pipeline kahi i koi ʻole ʻia ai ke kūpaʻa convection. ʻO ia hoʻi, ʻaʻole i noʻonoʻo ʻia ka poho kaomi.
3. He koho no na kiwi li'ili'i nā kiwi kui, nā kiwi mea kani, nā kiwi ho'āno a me nā kiwi kui.
4. Aia ka hoʻoponopono kahe a i ʻole ka hoʻoponopono kaomi, akā ʻaʻole kiʻekiʻe ka pololei o ka hoʻoponopono, a he liʻiliʻi ke anawaena o ka pipeline. No ka paipu me ka pauku inoa ma lalo o 50 mm, pono e koho ʻia ka valve ʻokiʻoki.
5. ʻO ke kaomi kiʻekiʻe angular globe valve a i ʻole ke kaomi kiʻekiʻe angular throttle valve me ka nominal pressure PN160 16 MPa a i ʻole PN320 32 MPa pono e koho ʻia no nā mea kanu kemika liʻiliʻi a nui i ka hana ʻoihana synthetic.
6. Ma ka hale hana desiliconization a me ka coke-prone pipeline o ka alumina Bayer kaʻina, he mea maʻalahi ke koho i ke kīpē honua pololei-i kēia manawa a i ʻole ka valve throttle pololei i kēia manawa me ke kino valve kaʻawale, ka noho hiki a me ka carbide sealing pair.
7. I loko o ka wai a me nā papahana hoʻolako wela i ke kūkulu ʻana i ke kūlanakauhale, hele nā pipeline nominal i nā mea liʻiliʻi, a hiki ke koho ʻia nā kiwi honua, nā kiwi kaulike a i ʻole nā plunger valves, e like me nā pipeline e hele ai nā pipeline nominal ma lalo o 150 mm.
Ka manawa hoʻouna: Jul-11-2019
